diff --git a/main.go b/main.go
index 23bb2e5..7877ca3 100644
--- a/main.go
+++ b/main.go
@@ -96,7 +96,7 @@ func main() {
 			Expiration: 30 * time.Minute,
 			MaxBytes:   25000000,
 			KeyGenerator: func(c *fiber.Ctx) string {
-				return utils.GetInstanceProtocol(c) + " " + c.OriginalURL()
+				return utils.GetInstanceUrl(c) + c.OriginalURL()
 			},
 			CacheControl:         true,
 			StoreResponseHeaders: true,